[EN] NOVEL CONJUGATES OF A PHARMACEUTICAL AGENT AND A MOIETY CAPABLE OF BINDING TO A GLUCOSE SENSING PROTEIN<br/>[FR] NOUVEAUX CONJUGUÉS CONSTITUÉS D'UN AGENT PHARMACEUTIQUE ET D'UNE FRACTION POUVANT SE LIER À UNE PROTÉINE DE DÉTECTION DU GLUCOSE
申请人:SANOFI SA
公开号:WO2019106122A1
公开(公告)日:2019-06-06
The invention describes novel conjugates of formula (I) of a pharmaceutical agent and a moiety capable of binding to a glucose sensing protein allowing a reversible release of the pharmaceutical agent depending on the glucose concentration.
Diastereoselective synthesis of a methylated derivative of phomozin a phytotoxin isolated from Phomopsis helianthi, a phytopathogenic fungus of sunflowers
作者:Robert Nouguier、Michèle P. Bertrand、Philippe Picon、Patricia Perfetti
DOI:10.1016/0040-4039(94)88274-6
日期:1994.10
A methylatedderivative of the phytotoxinphomozin (2) is synthesized in high yield via the regioselective coupling of 2-methyl-4-benzyl orsellinic acid (6) and (R*, R*) benzyl dimethylglycerate (9) and one step hydrogenolysis of the benzyl and benzoyl protection.
Secondary Metabolites of Onygenales Fungi Exemplified by <i>Aioliomyces pyridodomos</i>
作者:Zhenjian Lin、Thomas B. Kakule、Christopher A. Reilly、Sinem Beyhan、Eric W. Schmidt
DOI:10.1021/acs.jnatprod.9b00121
日期:2019.6.28
Fungi from the order Onygenales include human pathogens. Although secondary metabolites are critical for pathogenic interactions, relatively little is known about Onygenales compounds. Here, we use chemical and genetic methods on Aioliomyces pyridodomos, the first representative of a candidate new family within Onygenales. We isolated 14 new bioactive metabolites, nine of which are first disclosed here. Thirty-two specialized metabolite biosynthetic gene clusters (BGCs) were identified. BGCs were correlated to some of the new compounds by heterologous expression of biosynthetic genes. Some of the compounds were found after one year of fermentation. By comparing BGCs from A. pyridodomos with those from 68 previously sequenced Onygenales fungi, we delineate a large biosynthetic potential. Most of these biosynthetic pathways are specific to Onygenales fungi and have not been found elsewhere. Family level specificity and conservation of biosynthetic gene content are evident within Onygenales. Identification of these compounds may be important to understanding pathogenic interactions.
Total Synthesis of (+)-Sch 725680: Inhibitor of Mammalian A–, B–, and Y–Family DNA Polymerases
The total synthesis of (+)-Sch 725680, a member of the hydrogenated azaphilone family, has been accomplished. The synthesis confirmed the absolute configuration and biological activities of the natural product. A key reaction to construct a hydrogenated azaphilone core skeleton is a Ti-mediated aldol reaction.